refactor(prefs): create the settings store through DataStore.Builder

The store is now built through DataStore.Builder instead of the
preferencesDataStore delegate.

app/src/main/java/com/example/research/data/local/preferences/PreferencesManager.kt

@@ -2,14 +2,20 @@ package com.example.research.data.local.preferences
 
 import android.content.Context
 import androidx.datastore.core.DataStore
+import androidx.datastore.core.FileStorage
+import androidx.datastore.core.handlers.ReplaceFileCorruptionHandler
 import androidx.datastore.preferences.core.Preferences
+import androidx.datastore.preferences.core.PreferencesFileSerializer
 import androidx.datastore.preferences.core.edit
 import androidx.datastore.preferences.core.booleanPreferencesKey
+import androidx.datastore.preferences.core.emptyPreferences
 import androidx.datastore.preferences.core.stringPreferencesKey
 import androidx.datastore.preferences.core.stringSetPreferencesKey
-import androidx.datastore.preferences.preferencesDataStore
+import androidx.datastore.preferences.preferencesDataStoreFile
 import com.example.research.core.domain.model.DictionarySource
 import com.example.research.core.domain.model.SearchBarPosition
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.SupervisorJob
 import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.distinctUntilChanged
 import kotlinx.coroutines.flow.first
@@ -17,7 +23,23 @@ import kotlinx.coroutines.flow.map
 import kotlinx.serialization.json.Json
 import java.io.File
 
-private val Context.dataStore: DataStore<Preferences> by preferencesDataStore(name = "settings")
+private const val SETTINGS_STORE_NAME = "settings"
+
+private val storeLock = Any()
+
+@Volatile
+private var settingsStore: DataStore<Preferences>? = null
+
+private val Context.dataStore: DataStore<Preferences>
+    get() = settingsStore ?: synchronized(storeLock) {
+        settingsStore ?: DataStore.Builder(
+            storage = FileStorage(PreferencesFileSerializer) {
+                applicationContext.preferencesDataStoreFile(SETTINGS_STORE_NAME)
+            },
+            context = Dispatchers.IO + SupervisorJob(),
+        ).setCorruptionHandler(ReplaceFileCorruptionHandler { emptyPreferences() }).build()
+            .also { settingsStore = it }
+    }
 
 data class SectionExpansionStates(
     val isThemeExpanded: Boolean = false,